EP2649675A1 - Ensemble fenêtre ayant une couche transparente avec une fente pour un élément d'antenne filaire - Google Patents

Ensemble fenêtre ayant une couche transparente avec une fente pour un élément d'antenne filaire

Info

Publication number
EP2649675A1
EP2649675A1 EP11810715.0A EP11810715A EP2649675A1 EP 2649675 A1 EP2649675 A1 EP 2649675A1 EP 11810715 A EP11810715 A EP 11810715A EP 2649675 A1 EP2649675 A1 EP 2649675A1
Authority
EP
European Patent Office
Prior art keywords
window assembly
wire antenna
antenna element
transparent layer
set forth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11810715.0A
Other languages
German (de)
English (en)
Other versions
EP2649675B1 (fr
Inventor
Wladimiro Villarroel
Ming Lee
Yasutaka Horiki
Kwan-Ho Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGC Automotive Americas R&D Inc
Original Assignee
AGC Automotive Americas R&D Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=45420993&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2649675(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by AGC Automotive Americas R&D Inc filed Critical AGC Automotive Americas R&D Inc
Publication of EP2649675A1 publication Critical patent/EP2649675A1/fr
Application granted granted Critical
Publication of EP2649675B1 publication Critical patent/EP2649675B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10376—Laminated safety glass or glazing containing metal wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the subject invention generally relates to a window assembly for a vehicle. More specifically, the subject invention relates to a wire antenna element disposed within a slot defined by a transparent layer disposed within the window assembly.
  • clear films or coatings embedded within the windshield for various purposes.
  • Such clear films or coatings often have metal compounds, such as metal oxides, for making the clear films or coatings electrically conductive.
  • These clear films or coatings have been utilized in defogging or defrosting systems and even as active antenna elements for vehicles.
  • the clear films or coatings have been applied to windshields to absorb heat from sunlight penetrating the windshield.
  • the clear films or coatings absorb infrared radiation from sunlight.
  • the clear films or coatings reduce the amount of infrared radiation entering an interior of the vehicle.
  • the clear films or coatings enable a lower interior temperature as compared to a vehicle having a windshield with no clear films or coatings.
  • wire antennas have been employed on vehicle windshields for a variety of applications.
  • the wire antennas are often placed upon various locations of the windshield and are energized by a feeder line, which is coupled to the wire antenna.
  • a feeder line which is coupled to the wire antenna.
  • the wire antennas it is necessary for the wire antennas to be disposed within or on an outer surface of the windshield of the vehicle.
  • the wire antenna to effectively receive or transmit radio waves without interruption, it is also necessary to reduce surrounding electromagnetic interference with the wire antenna to the extent possible.
  • the clear films or coatings effectively reduce transmission of infrared radiation through the windshield, the clear films or coatings may also negatively affect the ability of the wire antenna to adequately transmit or receive radio waves.
  • the clear films or coatings are electrically conductive and therefore naturally have the potential to interfere adversely with the radiation pattern and gain of the wire antenna on the windshield.
  • the clear films or coatings are applied over a substantial part of the windshield, there remains minimal space on the windshield to place the wire antenna such that the clear films or coatings do not adversely affect the functionality of the wire antenna.
  • the invention provides a window assembly for a vehicle.
  • the window assembly includes an exterior substrate and an interior substrate.
  • the exterior substrate has an inner surface and an outer surface.
  • the interior substrate is disposed adjacent the exterior substrate and has an inner surface and an outer surface.
  • the interior and exterior substrates define a first peripheral boundary.
  • a transparent layer is disposed between the inner surfaces of the exterior and interior substrates.
  • the transparent layer defines an area covering the window assembly.
  • the area defines a second peripheral boundary.
  • the transparent layer includes a metal compound such that the transparent layer is electrically conductive.
  • An outer region, which is electrically non-conductive, is defined on the window assembly between the first and second peripheral boundaries.
  • a slot is defined by the area and opens into the outer region. The slot is devoid of the transparent layer and electrically non- conductive.
  • a wire antenna element is disposed within the slot.
  • a feeding element is coupled to the wire antenna element for energizing the wire antenna element.
  • the wire antenna element is electrically disconnected from the transparent layer such
  • the window assembly provides the slot in the transparent layer for allowing placement of the wire antenna element within the slot.
  • the wire antenna element may still be included with the window assembly in instances where there otherwise would be minimal or no space available on the window assembly for the wire antenna element to function properly without being subjected to interference by the transparent layer.
  • the area of the transparent layer is maximized for operation of the transparent layer in other useful applications such as a defogging, a defrosting, or an infrared radiation absorbing element.
  • FIG. 1 is a perspective view of a vehicle having a window assembly with a transparent layer defining a slot and with a wire antenna element disposed within the slot;
  • FIG. 2a is a cross-sectional partial view of the window assembly having the transparent layer sandwiched between an interior and exterior substrate and the wire antenna element disposed within the slot on an outer surface of the interior substrate;
  • FIG. 2b is a cross-sectional partial view of the window assembly having the transparent layer and the wire antenna element disposed within the slot and sandwiched between the interior and exterior substrates;
  • FIG. 2c is a cross-sectional partial view of the window assembly having the transparent layer sandwiched between the interior and exterior substrates and the wire antenna element disposed within the slot on an outer surface of the exterior substrate;
  • FIG. 3 is a plan view of the window assembly having the transparent layer covering a majority of the window assembly and defining the slot according to one embodiment
  • FIG. 4 is a plan view of the window assembly having the transparent layer covering the majority of the window assembly and defining the slot according to an alternative embodiment
  • FIG. 5a is a cross-sectional partial view of the window assembly having an interlayer sandwiched between the transparent layer and an inner surface of the interior substrate with the wire antenna element disposed within the slot on the outer surface of the exterior substrate;
  • FIG. 5b is a cross-sectional partial view of the window assembly having the interlayer sandwiched between the transparent layer and the inner surface of the interior substrate with the wire antenna element disposed within the slot and sandwiched between the interlayer and an inner surface of the exterior substrate;
  • FIG. 5c is a cross-sectional partial view of the window assembly having the interlayer sandwiched between the transparent layer and the inner surface of the interior substrate with the wire antenna element disposed within the slot on the outer surface of the interior substrate;
  • FIG. 5d is a cross-sectional partial view of the window assembly having the interlayer sandwiched between the transparent layer and the inner surface of the exterior substrate with the wire antenna element disposed within the slot on the outer surface of the exterior substrate;
  • FIG. 5e is a cross-sectional partial view of the window assembly having the interlayer sandwiched between the transparent layer and the inner surface of the exterior substrate with the wire antenna element disposed within the slot and sandwiched between the interlayer and an inner surface of the interior substrate;
  • FIG. 5f is a cross-sectional partial view of the window assembly having the interlayer sandwiched between the transparent layer and the inner surface of the exterior substrate with the wire antenna element disposed within the slot on the outer surface of the interior substrate;
  • FIG. 5g is a cross-sectional partial view of the window assembly having one portion of the wire antenna element disposed coplanar with respect to the transparent layer and another portion of the wire antenna element disposed non-coplanar with respect to the transparent layer and on the outer surface of the interior substrate;
  • FIG. 5h is a cross-sectional partial view of the window assembly having the one portion of the wire antenna element disposed coplanar with respect to the transparent layer and the other portion disposed non-coplanar with respect to the transparent layer and extending into the interlayer;
  • FIG. 6a is an enlarged view of the window assembly having the wire antenna element including metal wire disposed within the slot of the transparent layer with a feeding element coupled to the wire antenna element;
  • FIG. 6b is a partial cross-sectional view of the window assembly having the feeding element spaced from and capacitively coupled to the wire antenna element including metal wire;
  • FIG. 6c is a partial cross-sectional view of the window assembly having the feeding element abutting and in direct electrical connection with the wire antenna element including metal wire;
  • FIG. 7 is a cross-sectional partial view of the window assembly having a first wire antenna element disposed within the slot and sandwiched between the interlayer and the inner surface of the exterior substrate and a second wire antenna element disposed on the outer surface of the interior substrate.
  • a window assembly is shown generally at 10 in FIG. 1.
  • the window assembly 10 is for a vehicle 12.
  • the window assembly 10 may be a front window (windshield) as illustrated in FIG. 1.
  • the window assembly 10 may be a rear window (backlite), a roof window (sunroof), or any other window of the vehicle 12.
  • the vehicle 12 defines an aperture and the window assembly 10 closes the aperture.
  • the aperture is conventionally defined by a window frame 14 of the vehicle 12 which is typically electrically conductive.
  • the window assembly 10 of this invention may be for applications other than for vehicles 12.
  • the window assembly 10 may be for architectural applications such as homes, buildings, and the like.
  • a wire antenna element 16 is included with the window assembly 10.
  • the wire antenna element 16 is configured to receive linearly polarized radio frequency (RF) signals.
  • the linearly polarized RF signals which the wire antenna element 16 may receive include, but are not limited to, AM, FM, RKE, DAB, DSRC, WiMAX, or DTV signals.
  • the wire antenna element 16 may also be configured to transmit linearly polarized RF signals.
  • the wire antenna element 16 is configured for transmission and/or reception of FM frequencies generally in the range from 88 MHz to 108 MHz.
  • the wire antenna element 16 may be configured to transmit or receive circularly polarized RF signals such as GPS signal, Satellite Digital Audio Radio Service (SDARS) signals, and the like.
  • SDARS Satellite Digital Audio Radio Service
  • the window assembly 10 may include a plurality of wire antenna elements 16.
  • the window assembly 10 includes an exterior substrate 18 and an interior substrate 20 disposed adjacent the exterior substrate 18.
  • the interior substrate 20 is disposed parallel to and spaced from the exterior substrate 18 such that the substrates 18, 20 are not contacting one another.
  • the exterior substrate 18 may directly abut the interior substrate 20.
  • the exterior and interior substrates 18, 20 are electrically non-conductive.
  • non-conductive refers generally to a material, such as an insulator or dielectric, that when placed between conductors at different electric potentials, permits a negligible current to flow through the material.
  • the exterior and interior substrates 18, 20 are also substantially transparent to light. However, it is to be appreciated that the exterior and interior substrates 18, 20 may be colored or tinted and still be substantially transparent to light. As used herein, the term "substantially transparent” is defined generally as having a visible light transmittance of greater than 60 percent.
  • the exterior and interior substrates 18, 20 may be joined together to form the window assembly 10. It is preferred that the exterior and interior substrates 18, 20 are panes of glass.
  • the panes of glass are preferably automotive glass and, more preferably, soda-lime-silica glass.
  • the exterior and interior substrates 18, 20 may be plastic, fiberglass, or other suitable electrically non-conductive and substantially transparent material. For automotive applications, the exterior and interior substrates 18, 20 are each typically 3.2 mm thick.
  • Each of the exterior and interior substrates 18, 20 has an inner surface 18a, 20a and an outer surface 18b, 20b.
  • the outer surface 18b of the exterior substrate 18 typically faces an exterior of the vehicle 12.
  • the outer surface 20b of the interior substrate 20 typically faces an interior of the vehicle 12.
  • the inner surfaces 18a, 20a of the exterior and interior substrates 18, 20 typically face one another when the exterior and interior substrates 18, 20 are joined together to form the window assembly 10.
  • the exterior and interior substrates 18, 20 define a first peripheral boundary 22.
  • the first peripheral boundary 22 is defined preferably by a peripheral edge of the window assembly 10.
  • the peripheral edge of the window assembly 10 is shared by the exterior and interior substrates 18, 20.
  • the exterior and interior substrates 18, 20 typically have substantially similar areas and shapes with each substrate 18, 20 having an edge forming part of the peripheral edge when the substrates 18, 20 are joined.
  • the edges of exterior and interior substrates 18, 20 need not align to define the first peripheral boundary 22.
  • the edge of the exterior or interior substrate 18, 20 may extend beyond the edge of the other, respectively.
  • the first peripheral boundary 22 may be defined by either or both edges of the substrates 18, 20.
  • the first peripheral boundary 22 has a generally trapezoidal configuration.
  • the first peripheral boundary 22 may have any suitable shape.
  • a transparent layer 24 is disposed between the exterior and interior substrates 18, 20.
  • the window assembly 10 preferably includes the transparent layer 24 sandwiched between the exterior and interior substrates 18, 20 such that the transparent layer 24 is abutting the substrates 18, 20. More specifically, the transparent layer 24 is preferably disposed on the inner surfaces 18a, 20a of the exterior and/or interior substrates 18, 20. Disposal of the transparent layer 24 between the exterior and interior substrates 18, 20 protects the transparent layer 24 from direct contact with environmental factors, which may damage the transparent layer 24 such as snow, ice, and the like.
  • the transparent layer 24 is preferably formed from a coating.
  • the transparent layer 24 is substantially transparent to light. Accordingly, a driver or occupant of the vehicle 12 may see through the window assembly 10 having the transparent layer 24. With the transparent layer 24 disposed within the window assembly 10, the window assembly 10 generally exhibits greater than 60 percent visible light transmission through the window assembly 10. The transparent layer 24 preferably absorbs heat from sunlight penetrating the window assembly 10. In particular, the transparent layer 24 reduces transmission of infrared radiation through the window assembly 10.
  • the term "transparent layer” may include one or more coatings and/or films of selected composition. The coatings and/or films forming the transparent layer 24 may be single or multiple layers. The transparent layer 24 may be disposed in the window assembly 10 according to any suitable method, such as chemical vapor deposition, magnetron sputter vapor deposition, spray pyrolysis, and the like.
  • the transparent layer 24 includes a metal compound such that the transparent layer 24 is electrically conductive.
  • the term "electrically conductive" refers generally to a material, such as a conductor, exhibiting low electrical resistivity for effectively allowing flow of electric current through the material.
  • the metal compound includes a metal oxide.
  • the metal compound may also include a metal nitride, and the like.
  • the metal oxide may include a tin oxide, such as indium tin oxide, or the like.
  • the transparent layer 24 may include other metal oxides, including, but not limited to, silver oxide.
  • the metal compound may also be doped with an additive, such as fluorine.
  • the additive may be included in the metal compound to optimize the light transmittance and electrical resistivity of the transparent layer 24.
  • the transparent layer 24 preferably has a sheet resistance in a range between 0.5-20 ⁇ /square. More preferably, the transparent layer 24 has a sheet resistance of approximately 2 ⁇ /square. The sheet resistance may also be known as a surface resistance of the transparent layer 24.
  • the transparent layer 24 defines an area 26 covering the window assembly 10. As shown in FIGS. 3 and 4, the area 26 may cover a majority of the window assembly 10. Specifically, the majority of the window assembly 10 is preferably defined as greater than 50 percent of the window assembly 10. More typically, the majority is greater than 75 percent of the window assembly 10. Generally, the transparent layer 24 covers the majority of the window assembly 10 for maximizing the reduction of transmission of infrared radiation through the window assembly 10. However, it is to be appreciated that the area 26 of the transparent layer 24 may cover a minority of the window assembly 10. For example, the area 26 may cover 20 percent of the window assembly 10 along the upper portion of the window assembly 10. The area 26 generally defines a shape substantially similar to the first peripheral boundary 22. However, the area 26 may have any suitable shape for covering the window assembly 10.
  • the area 26 of the transparent layer 24 defines a second peripheral boundary 28.
  • the second peripheral boundary 28 is defined by a boundary or perimeter of the area 26.
  • An outer region 30 is defined on the window assembly 10 between the first and second peripheral boundaries 22, 28.
  • the outer region 30 is devoid of the transparent layer 24 and is therefore, electrically non-conductive.
  • the outer region 30 has a width defined as a distance between the first and second peripheral boundaries 22, 28. Preferably, the width is greater than 0 mm and less than 200 mm.
  • the width of the outer region 30 may vary depending upon how the window assembly 10 of the present invention is fitted to the window frame 14 of the vehicle 12. Specifically, the outer region 30 may have the width equal to an overlap between the window frame 14 and the window assembly 10.
  • the outer region 30 may separate the transparent layer 24 from the window frame 14 of the vehicle 12 to avoid the possibility of an electrical path between the transparent layer 24 and the window frame 14 that may adversely affect the efficiency and radiation pattern of the wire antenna element 16. Furthermore, the outer region 30 may protect the transparent layer 24 by separating the transparent layer 24 from the first peripheral boundary 22 that is subjected to environmental factors, which may degrade the quality of the transparent layer 24.
  • an interlayer 32 may be disposed between the inner surfaces 18a, 20a of the exterior and interior substrates 18, 20, as illustrated in FIGS. 5a-5h.
  • the window assembly 10 may include the exterior and interior substrates 18, 20 having the transparent layer 24 and the interlayer 32 sandwiched therebetween.
  • the interlayer 32 bonds the exterior and interior substrates 18, 20 and prevents the window assembly 10 from shattering upon impact.
  • the interlayer 32 typically is substantially transparent to light and includes a polymer or thermoplastic resin, such as polyvinyl butyral (PVB).
  • PVB polyvinyl butyral
  • the interlayer 32 has a thickness of between 0.5 mm to 1 mm.
  • the transparent layer 24 may be disposed adjacent the interlayer 32. More specifically, the transparent layer 24 may be disposed between the interlayer 32 and the inner surface 18a of the exterior substrate 18, as shown in FIGS. 5a-5c. Alternatively, as shown in FIGS. 5d-5h, the transparent layer 24 may be disposed between the interlayer 32 and the inner surface 20a of the interior substrate 20.
  • the window assembly 10 includes the transparent layer 24 and interlayer 32 sandwiched between the exterior and interior substrates 18, 20 such that the interlayer 32 and the transparent layer 24 are abutting the inner surfaces 18a, 20a of the exterior and/or interior substrates 18, 20.
  • a slot 34 is defined by the area 26.
  • the slot 34 opens into the outer region 30.
  • the slot 34 is devoid of the transparent layer 24 and electrically non-conductive.
  • the slot 34 opens into the outer region 30 such that the slot 34 and the outer region 30 may form an electrically non-conductive region.
  • the slot 34 and the outer region 30 are generally distinct regions on the window assembly 10.
  • the outer region 30 is defined between the first and second peripheral boundaries 22, 28.
  • the second peripheral boundary 28 separates the slot 34 from the outer region 30.
  • the slot 34 is defined by the area 26 within the second peripheral boundary 28 such that the slot 34 is generally defined independent of other electrically conductive components, such as the vehicle 12 body, or the like.
  • the second peripheral boundary 28 generally excludes boundaries of the transparent layer 24 defining the slot 34 within the area 26. In other words, it is preferred that the second peripheral boundary 28 be continuously adjacent the outer region 30 despite interruption of the peripheral boundary 28 by the slot 34. As such, as shown in the embodiment of FIG. 4, it is to be appreciated that the area 26 of the transparent layer 24 is preferably not sub-divided into separate independent areas, but rather the area 26 remains unitary within the second peripheral boundary 22.
  • the slot 34 may be formed on the window assembly 10 according to any suitable technique known in the art. For instance, the inner surfaces 18a, 20a of one of the exterior and interior substrates 18, 20 may be masked before application of the transparent layer 24 to provide a desired shape of the slot 34.
  • the transparent layer 24 may first be applied to the window assembly 10. Thereafter, selected portions of the transparent layer 24 may be removed or deleted to provide a desired shape of the slot 34. Removal or deletion of selected portions of the transparent layer 24 may be accomplished using lasers, abrasive tools, chemical removal, and the like.
  • the wire antenna element 16 preferably includes metal wire.
  • the term "wire” refers generally to at least one strand or rod of metal.
  • the strands or rods are flexible and are formed of copper, or other metals.
  • the wire antenna element 16 may also be formed of an electrically conductive paste, such as a silver paste.
  • the wire antenna element 16 may be applied to the window assembly 10 according to any suitable method, such as printing, firing, and the like.
  • the wire antenna element 16 has a predetermined diameter and length generally correlating to a predetermined wavelength of radio waves intended to be transmitted or received by the wire antenna element 16.
  • the wire antenna element 16 is substantially opaque to light such that light cannot readily pass through the wire antenna element 16. In other words, the wire antenna element 16 has a visible light transmittance of generally less than 5 percent.
  • the wire antenna element 16 preferably transmits or receives linearly polarized RF signals.
  • the wire antenna element 16 preferably has a monopole or dipole configuration, such as the wire antenna element 16 illustrated in FIG. 6a.
  • the wire antenna element 16 may have a loop or meander line configuration.
  • the wire antenna element 16 may be included as a subcomponent of a more complex antenna assembly. It is to be appreciated that the wire antenna element 16 may have other configurations not specifically recited herein. It is also to be understood that the configuration of the wire antenna element 16 in FIG. 6a is for illustrative purposes and is not intended to limit the scope of the present invention to the specific embodiment illustrated in the Figure.
  • the wire antenna element 16 is disposed within the slot 34.
  • the wire antenna element 16 is neither directly abutting nor in direct electrical contact with the transparent layer 24.
  • the wire antenna element 16 may be disposed coplanar with respect to the transparent layer 24.
  • the wire antenna element 16 may be disposed within the slot 34 on the same layer in the window assembly 10 as the transparent layer 24.
  • the wire antenna element 16 may be disposed non-coplanar with respect to the transparent layer 24. In such instances, the wire antenna element 16 is disposed within the slot 34 but on a different layer in the window assembly 10 than the transparent layer 24.
  • the wire antenna element 16 may simultaneously be disposed coplanar and non-coplanar with respect to the transparent layer 24. Specifically, one portion of the wire antenna element 16 may be disposed on the same layer in the window assembly 10 as the transparent layer 24, while another portion of the wire antenna element 16 is disposed on another layer in the window assembly 10.
  • FIG. 5g shows the one portion of the wire antenna element 16 disposed coplanar with respect to the transparent layer 24 and the other portion of the wire antenna element 16 disposed on the outer surface 20b of the interior substrate 20.
  • the one portion of the wire antenna element 16 is disposed coplanar with respect to the transparent layer 24 while the other portion is extending into the interlayer 32.
  • the wire antenna element 16 may extend into the interlayer 32 or extend into one of the exterior and interior substrates 18, 20. It is to be appreciated that the wire antenna element 16 may be disposed non-coplanar with respect to the transparent layer 24 and still be disposed within the slot 34.
  • the wire antenna element 16 may be partially disposed within the outer region 30.
  • the wire antenna element 16 may be partially disposed within the slot 34 and partially disposed within the outer region 30.
  • the slot 34 opens into the outer region 30 and is generally separated from the outer region 30 by the second peripheral boundary 28.
  • slot 34 and the outer region 30 are both electrically non-conductive.
  • the wire antenna element 16 may partially overlap the outer region 30 and still be disposed within the slot 34. In such instances, the wire antenna element 16 is generally not exposed to electromagnetic interference presented by the transparent layer 24. Specifically, the wire antenna element 16 is still neither directly abutting nor in direct electrical contact with the transparent layer 24.
  • the slot 34 may have any suitable dimensions, configuration, or shape for accommodating the wire antenna element 16.
  • the slot 34 may have a linear configuration, a curved configuration, or the like.
  • the slot 34 is sized such that the wire antenna element 16 substantially occupies the slot 34.
  • the transparent layer 24 it is preferable for the transparent layer 24 to be removed or deleted to the extent to accommodate effectively the wire antenna element 16.
  • the area 26 of the transparent layer 24 is maximized for its other functions, such as absorbing infrared radiation penetrating the window assembly 10.
  • the wire antenna element 16 may occupy only a minority of the slot 34.
  • the slot 34 opens into the outer region 30 at two independent locations along the second peripheral boundary 28 of the area 26.
  • the slot 34 generally interrupts the second peripheral boundary 28 at the two independent locations.
  • the slot 34 may extend through a center of the area 26 thereby bisecting the area 26 equally within the second peripheral boundary 28.
  • the slot 34 may interrupt the second peripheral boundary 28 at the two independent locations such that the area 26 is bisected unequally within the second peripheral boundary 28.
  • the window assembly 10 may also include a plurality of slots
  • Each of the plurality of slots 34 may be utilized to accommodate a separate wire antenna element 16 on the window assembly 10.
  • the plurality of slots 34 may intersect one another to form a common electrically non-conductive region between the plurality of slots 34 and the outer region 30.
  • the plurality of slots 34 may be independent of each other such that each slot 34 does not intersect one another.
  • the plurality of slots 34 may divide the area 26 into a plurality of independent sub-areas within the second peripheral boundary 28.
  • a wire antenna element 16 may be disposed within the plurality of slots 34.
  • a plurality of wire antenna elements 16 may be disposed within the plurality of slots 34.
  • the wire antenna element 16 may be arranged according to several configurations with respect to the transparent layer 24, interlayer 32, and substrates 18, 20 of the window assembly 10. In instances where the window assembly 10 is absent the interlayer 32, the wire antenna element 16 may be disposed within the slot 34 between the exterior and interior substrates 18, the wire antenna element 16 is coplanar with respect to the transparent layer 24. According to another embodiment, as shown in FIG. 2a, the wire antenna element 16 may be disposed within the slot 34 on the outer surface 20b of the interior substrate 20 of the window assembly 10. In another embodiment, as shown in FIG. 2c, the wire antenna element 16 may be disposed within the slot 34 on the outer surface 18b of the exterior substrate 18 of the window assembly 10. In the embodiments of FIGS. 2a and 2c, the wire antenna element 16 is non-coplanar with respect to the transparent layer 24.
  • FIG. 5b shows the wire antenna element 16 disposed within the slot 34 between the interlayer 32 and the inner surface 18a of the exterior substrate 18, according to one embodiment.
  • the wire antenna element 16 is disposed within the slot 34 on the outer surface 20b of the interior substrate 20.
  • the wire antenna element 16 may also be disposed within the slot 34 on the outer surface 18b of the exterior substrate 18. The wire antenna element 16 is coplanar with respect to the transparent layer 24 in FIG. 5b, and non-coplanar with respect to the transparent layer 24 in FIGS. 5a and 5c.
  • FIG. 5e shows the wire antenna element 16 disposed within the slot 34 between the interlayer 32 and the inner surface 20a of the interior substrate 20, according to one embodiment.
  • the wire antenna element 16 is disposed within the slot 34 on the outer surface 18b of the exterior substrate 18.
  • the wire antenna element 16 may also be disposed within the slot 34 on the outer surface 20b of the interior substrate 20, as shown in FIG. 5f.
  • the wire antenna element 16 is coplanar with respect to the transparent layer 24 in FIG. 5e, and non- coplanar with respect to the transparent layer 24 in FIGS. 5d and 5f.
  • the wire antenna element 16 may additionally be disposed on a side of the interlayer 32 opposite the side of the interlayer 32 disposed adjacent the transparent layer 24. Additionally, it is to be appreciated that the wire antenna element 16 and/or the transparent layer 24 may embedded within the interlayer 32 such that the wire antenna element 16 and/or the transparent layer 24 are sandwiched between the interlayer 32.
  • the window assembly 10 includes a second wire antenna element 16 wherein one of the wire antenna elements 16 is disposed on the outer surface 20b of the interior substrate 20 and the other of the wire antenna elements 16 is disposed on the inner surface 18a of the exterior substrate 18.
  • at least one of the wire antenna elements 16 is disposed within the slot 34.
  • both wire antenna elements 16 may be disposed within the slot 34 on different layers of the window assembly 10.
  • both wire antenna elements 16 may overlap one another on different layers of the window assembly 10.
  • the first and second wire antenna elements 16 may implement a diversity antenna system whereby the first and second wire antenna elements 16 may be configured to transmit or receive signals in multiple directions within a field of reception.
  • the received signal may be switched or combined between the first and second wire antenna elements 16 to minimize interference and temporary fading of the signal.
  • the wire antenna elements 16 may be disposed according to numerous embodiments with respect to the substrates 18, 20, the transparent layer 24, and the interlayer 32, not specifically shown in the Figures.
  • the window assembly 10 includes a feeding element 36 coupled to the wire antenna element 16 for energizing the wire antenna element 16.
  • the term "energize” is understood to describe an electrical relationship between the feeding element 38 and the wire antenna element 16 whereby the feeding element 36 excites the wire antenna element 16 for transmission of radio waves, and is electrically coupled to the wire antenna element 16 for reception of impinging radio waves by the antenna element 16.
  • the feeding element 36 may include any suitable material for energizing the wire antenna element 16.
  • the feeding element 36 may include a feeding strip, a feeding wire, or a combination of both.
  • the feeding element 36 may be a balanced or unbalanced line.
  • the feeding element 36 may be an unbalanced coaxial cable, microstrip, or single wire line.
  • the feeding element 36 may include any suitable feeding network for providing phase shifting to the RF signal transmitted or received by the wire antenna element 16.
  • the feeding element 36 may include a transparent coating of the same type as the transparent layer 24 and/or the wire antenna element 16.
  • a plurality of feeding elements 36 may be coupled to one or more wire antenna elements 16 for energizing the wire antenna elements 16.
  • the feeding element 36 is generally disposed on the inner surface 18a, 20a or outer surface 18b, 20b of one of the exterior and interior substrates 18, 20 of the window assembly 10. However, it is to be appreciated that the feeding element 36 may be disposed on any layer of the window assembly 10.
  • the feeding element 36 may be disposed coplanar or non-coplanar with respect to the wire antenna element 16.
  • the feeding element 36 is abutting and in direct electrical connection with the wire antenna element 16 for energizing the wire antenna element 16.
  • the feeding element 36 is directly wired or soldered to the wire antenna element 16.
  • the feeding element 36 passes electrical current to the wire antenna element 16 directly through an electrically conductive material, such as a feeding strip or wire, physically attached to the wire antenna element 16.
  • the feeding element 36 and the wire antenna element 16 may be abutting and in direct electrical connection on the window assembly 10 according to several other configurations with respect to the transparent layer 24 and the interlayer 32 not specifically illustrated throughout the Figures.
  • the feeding element 36 may be spaced from and capacitively coupled to the wire antenna element 16 for energizing the wire antenna element 16.
  • the feeding element 36 passes current to the wire antenna element 16 through the air or a dielectric material, such as the exterior or interior substrates 18, 20.
  • the feeding element 36 is neither directly wired nor in direct contact with the wire antenna element 16 and is generally disposed non-coplanar with the wire antenna element 16.
  • the feeding element 36 may be spaced from and capacitively coupled to the wire antenna element 16 on the window assembly 10 according to several other embodiments with respect to the transparent layer 24 and the interlayer 32 not specifically illustrated throughout the Figures.
  • the feeding element 36 overlaps the slot
  • the feeding element 36 may be disposed entirely within the slot 34 for energizing the wire antenna element 16.
  • the feeding element 36 may overlap the outer region 30.
  • the feeding element 36 may be partially overlapping the outer region 30 and partially overlapping the slot 34 for energizing the wire antenna element 16.
  • the feeding element 36 may overlap the transparent layer 24.
  • such overlap is merely incidental to positioning of the feeding element 36 on the window assembly 10 and the feeding element 36 is generally not operatively coupled to the transparent layer 24, as will be described below.
  • the feeding element 36 may be disposed entirely within the outer region 30 such that the feeding element 36 is not disposed within the slot 34.
  • the wire antenna element [0057] According to the present invention, the wire antenna element
  • the wire antenna element 16 is electrically disconnected from the transparent layer 24 such that the wire antenna element 16 operates independent of the transparent layer 24.
  • the wire antenna element 16 is disposed within the slot 34 such that the wire antenna element 16 is neither directly abutting nor in direct electrical contact with the transparent layer 24. Additionally, the wire antenna element 16 is neither wired nor soldered to the transparent layer 24. Thus, in some instances, the wire antenna element 16 may transmit and/or receive radio waves independent of the transparent layer 24. Said differently, the transparent layer 24 is not an active antenna element operatively coupled to the wire antenna element 16. Radio waves transmitted or received by the wire antenna element 16 pass through the slot 34 and generally are not operatively channeled through the transparent layer 24.
  • the wire antenna element 16 may also be capacitively decoupled from the transparent layer 24.
  • the wire antenna element 16 may be decoupled from the transparent layer 24 such that the transparent layer 24 does not function as an active antenna element.
  • the transparent layer 24 may be parasitically coupled to the wire antenna element 16 as the wire antenna element 16 is energized. However, such parasitic coupling may merely be incidental and it is to be appreciated that the wire antenna element 16 still operates independent of the transparent layer 24.
  • the slot 34 enables uninterrupted transmission and/or reception of radio waves by the wire antenna element 16 as the wire antenna element 16 is energized on the window assembly 10.
  • the wire antenna element 16 operates generally free of the transparent layer 24 as intended by the present invention.
  • the area 26 of the transparent layer 24 is maximized and the transparent layer 24 may still effectively function for other purposes, such as a defogging or a defrosting element, an infrared radiation absorbing material, and the like.
  • the feeding element 36 may also be electrically disconnected from the transparent layer 24 such that the feeding element 36 energizes the wire antenna element 16 independent of the transparent layer 24.
  • the feeding element 36 is coupled to the wire antenna element 16 for energizing the wire antenna element 16.
  • the feeding element 36 is not directly wired to the transparent layer 24. Instead, it is preferred that the feeding element 36 is electrically connected to the wire antenna element 16 generally independent of the transparent layer 24.
  • the feeding element 36 is preferably capacitively decoupled from the transparent layer 24. As such, the feeding element 36 generally does not energize the transparent layer 24 as an active antenna element.
  • the feeding element 36 may incidentally or parasitically be capacitively coupled to the transparent layer 24.
  • the feeding element 36 may be electrically connected to other components such as the vehicle 12 body, and the like.

Abstract

Selon l'invention, un ensemble fenêtre pour véhicule présente une couche transparente qui comprend un composé métallique de manière que la couche transparente est électriquement conductrice. La couche transparente définit une zone couvrant l'ensemble fenêtre. Une fente est définie par la zone et s'ouvre dans la région extérieure. L'ensemble fenêtre comprend un élément d'antenne filaire composé de fil métallique disposé à l'intérieur de la fente. L'élément d'antenne filaire est électriquement déconnecté de la couche transparente de sorte que l'élément d'antenne filaire fonctionne indépendamment de la couche transparente. Un élément d'alimentation est couplé à l'élément d'antenne filaire pour l'exciter. L'élément d'alimentation est électriquement déconnecté de la couche transparente de sorte qu'il excite l'élément d'antenne filaire indépendamment de la couche transparente.
EP11810715.0A 2010-12-09 2011-12-09 Ensemble fenêtre ayant une couche transparente avec une fente pour un élément d'antenne filaire Active EP2649675B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US42138610P 2010-12-09 2010-12-09
US42137610P 2010-12-09 2010-12-09
US42138110P 2010-12-09 2010-12-09
US42137410P 2010-12-09 2010-12-09
US201061427450P 2010-12-27 2010-12-27
PCT/US2011/064147 WO2012078979A1 (fr) 2010-12-09 2011-12-09 Ensemble fenêtre ayant une couche transparente avec une fente pour un élément d'antenne filaire

Publications (2)

Publication Number Publication Date
EP2649675A1 true EP2649675A1 (fr) 2013-10-16
EP2649675B1 EP2649675B1 (fr) 2020-07-22

Family

ID=45420993

Family Applications (8)

Application Number Title Priority Date Filing Date
EP11802834.9A Active EP2649671B2 (fr) 2010-12-09 2011-12-09 Ensemble fenêtre doté d'une couche transparente avec une rainure pour un élément d'antenne transparent
EP11808986.1A Active EP2649674B1 (fr) 2010-12-09 2011-12-09 Ensemble vitre équipé d'un élément d'antenne qui recouvre une couche transparente et ouverture définie dans cette couche
EP11802833.1A Active EP2649670B1 (fr) 2010-12-09 2011-12-09 Ensemble fenêtre comprenant une couche transparente et une zone externe pour un élément d'antenne
EP11808981.2A Withdrawn EP2649672A1 (fr) 2010-12-09 2011-12-09 Ensemble de fenêtre ayant une couche transparente avec une ouverture pour un élément d'antenne
EP11802616.0A Withdrawn EP2649669A1 (fr) 2010-12-09 2011-12-09 Ensemble antenne à élément d'antenne divergeant progressivement, comprenant une couche transparente électro-conductrice
EP11808984.6A Active EP2649673B1 (fr) 2010-12-09 2011-12-09 Ensemble fenêtre ayant un élément d'antenne chevauchant une couche transparente et une région extérieure adjacente
EP11808987.9A Withdrawn EP2649682A1 (fr) 2010-12-09 2011-12-09 Ensemble vitre à couche transparente avec extension d'antenne définissant une fente
EP11810715.0A Active EP2649675B1 (fr) 2010-12-09 2011-12-09 Ensemble fenêtre ayant une couche transparente avec une fente pour un élément d'antenne filaire

Family Applications Before (7)

Application Number Title Priority Date Filing Date
EP11802834.9A Active EP2649671B2 (fr) 2010-12-09 2011-12-09 Ensemble fenêtre doté d'une couche transparente avec une rainure pour un élément d'antenne transparent
EP11808986.1A Active EP2649674B1 (fr) 2010-12-09 2011-12-09 Ensemble vitre équipé d'un élément d'antenne qui recouvre une couche transparente et ouverture définie dans cette couche
EP11802833.1A Active EP2649670B1 (fr) 2010-12-09 2011-12-09 Ensemble fenêtre comprenant une couche transparente et une zone externe pour un élément d'antenne
EP11808981.2A Withdrawn EP2649672A1 (fr) 2010-12-09 2011-12-09 Ensemble de fenêtre ayant une couche transparente avec une ouverture pour un élément d'antenne
EP11802616.0A Withdrawn EP2649669A1 (fr) 2010-12-09 2011-12-09 Ensemble antenne à élément d'antenne divergeant progressivement, comprenant une couche transparente électro-conductrice
EP11808984.6A Active EP2649673B1 (fr) 2010-12-09 2011-12-09 Ensemble fenêtre ayant un élément d'antenne chevauchant une couche transparente et une région extérieure adjacente
EP11808987.9A Withdrawn EP2649682A1 (fr) 2010-12-09 2011-12-09 Ensemble vitre à couche transparente avec extension d'antenne définissant une fente

Country Status (4)

Country Link
US (2) US9755299B2 (fr)
EP (8) EP2649671B2 (fr)
CN (2) CN103329344B (fr)
WO (8) WO2012079040A1 (fr)

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Also Published As

Publication number Publication date
EP2649673B1 (fr) 2017-03-08
EP2649671B1 (fr) 2016-11-30
EP2649673A1 (fr) 2013-10-16
CN103262339A (zh) 2013-08-21
WO2012078986A1 (fr) 2012-06-14
WO2012079023A1 (fr) 2012-06-14
US20140104122A1 (en) 2014-04-17
EP2649672A1 (fr) 2013-10-16
CN103262339B (zh) 2016-05-04
WO2012079002A8 (fr) 2012-08-02
CN103329344B (zh) 2015-09-30
CN103329344A (zh) 2013-09-25
EP2649669A1 (fr) 2013-10-16
WO2012079029A1 (fr) 2012-06-14
WO2012078972A1 (fr) 2012-06-14
US9837707B2 (en) 2017-12-05
WO2012079002A1 (fr) 2012-06-14
WO2012079034A1 (fr) 2012-06-14
US9755299B2 (en) 2017-09-05
WO2012079040A1 (fr) 2012-06-14
WO2012078979A1 (fr) 2012-06-14
US20140015716A1 (en) 2014-01-16
EP2649670A1 (fr) 2013-10-16
EP2649671A1 (fr) 2013-10-16
EP2649675B1 (fr) 2020-07-22
EP2649682A1 (fr) 2013-10-16
EP2649670B1 (fr) 2020-08-19
EP2649671B2 (fr) 2019-10-16
EP2649674A1 (fr) 2013-10-16
EP2649674B1 (fr) 2016-04-06

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